how many moles of CaCl2 is 14.0g if CaCl2?

Question

jfraser · Answer

find the molar mass of CaCl2 from the periodic table

anonymous · Answer

thank you very much for replying! CaCl2 is equal to total of 110.984 grams

anonymous · Answer

would you divide the grams by 14?

jfraser · Answer

so if 1 mole of CaCl2 weighs 110.9g, or 111g, you have only 14g. Can you set up a conversion fraction to calculate the number of moles in 14g of CaCl2?

anonymous · Answer

14 divide by 110.984?

jfraser · Answer

$$14g CaCl_2 * (\frac{1mol CaCl_2}{111g CaCl_2}) = $$

jfraser · Answer

more important than the numbers, is where the units go. See how grams on one side is on top, but grams on the other side is on bottom? chemistry is all about converting by using fractions to convert units from one kind into another

anonymous · Answer

ok , 110.984 would go on the bottom correct

jfraser · Answer

correct

anonymous · Answer

and fourteen on the top?

jfraser · Answer

correct

anonymous · Answer

ok, so the answer would be .126?

jfraser · Answer

yes

anonymous · Answer

Thank you